# Fast MathB vs Mochi Jump

The clearest difference is ads: Fast MathB at none against Mochi Jump's shown. Fast MathB also leads on iOS requirement (12.0 vs 16.6). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Fast MathB sells 5 one-off in-app purchases and Mochi Jump sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Fast MathB ships an update every 6 days, Mochi Jump weekly. The most recent releases landed on September 11, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Fast MathB | Mochi Jump |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (568 ratings)](https://appshunter.io/ios/app/mochi-jump-into-infinity/id6448255128/reviews)** |
| Number of ratings | — | **568** |
| Positive reviews | — | 85.7% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 6 days** | Weekly |
| Monetization | — | Free with in-app purchases |
| Size | 153 MB | 78 MB |
| Requires iOS | **12.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 12+ |
| Developer | [Salih Hamouda](https://appshunter.io/developer/1564178940) | [Whoyaho Corp.](https://appshunter.io/developer/1571899568) |

## What reviewers say

### Fast MathB

[App page](https://appshunter.io/ios/app/fast-mathb/id6447488960)

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| pack1 | $0.99 | one-time |
| vip1 | $0.99 | one-time |
| pack3 | $2.99 | one-time |
| vip3 | $2.99 | one-time |
| pack5 | $4.99 | one-time |


### Mochi Jump

[App page](https://appshunter.io/ios/app/mochi-jump-into-infinity/id6448255128)

Guide a cute mochi character on an upward journey to catch cherry blossom petals and fulfill a dream. Avoid obstacles like clouds and bubbles while collecting adorable characters and aiming for high scores. Discover hidden items and unlock new characters as you ascend.

**Highlights:** Upward jumping gameplay, Collect cherry blossom petals, Unlockable cute characters, Obstacle avoidance, High score challenges, Discover hidden items

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ad Removal Pass | $1.99 | one-time |

**What reviewers like**

- 😍 Extremely cute and adorable character designs
- 🎮 Highly addictive and fun gameplay
- 🎨 Good character customization and variety
- ⚡ Simple and easy-to-learn mechanics
- 🚀 Engaging for road trips and casual play

**What reviewers complain about**

- 📺 Excessive and frequent ads
- ⏰ Ads appear after every death
- 🚫 Some unskippable ads
- 📱 Difficulty scaling issues at higher levels
- 🎮 Limited gameplay variety and repetitive

**Reported bugs**

- App crashes with 'An error has occurred' message
- Loading screen freezes then goes black
- Cannot equip or change mochi characters
- Costume/skin selection UI not accessible
- Screen display issues on iPad (low resolution)

**Requested features**

- Add more mochi/character skins
- Implement home/house feature
- Add background/theme customization
- Include practice mode for beginners
- Add boosters or power-ups


## Frequently asked questions

### Is Fast MathB free?

Fast MathB is free to download, with in-app purchases available.

### Is Mochi Jump free?

Mochi Jump is free to download, with in-app purchases available.

### Do Fast MathB or Mochi Jump have ads?

Mochi Jump shows ads; Fast MathB does not.

### Which is updated more often, Fast MathB or Mochi Jump?

Fast MathB ships an update every 6 days, and Mochi Jump weekly. Most recently, Fast MathB was updated on September 11, 2026 and Mochi Jump on September 23, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*